Which Device Is Used to Reduce the Pressure and Control

question 69

Multiple Choice

Which device is used to reduce the pressure and control the flow of a compressed medical gas?

• A) Bourdon gauge
• B) Regulator
• C) Flowmeter
• D) Reducing valve

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Definitions:

Critical Value

A point on a statistical distribution representing a threshold at which the null hypothesis is either rejected or not rejected.

One-Tailed Test

A statistical test in which the region of rejection is on only one side of the sampling distribution, used when the research hypothesis is directional.

Null Hypothesis

A statistical hypothesis that assumes no significant difference or effect exists in the case under investigation.

P-value

The p-value is a statistical measurement used to assess the strength of the results in hypothesis testing; it indicates the probability of observing the study results, or more extreme results, if the null hypothesis were true.